Expansion valve of an air conditioning system



FIG. 1 is plan view of an expansion valve of an air conditioning system;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken line showing is included for the purpose of illustrating and forms no part of the claimed design. 

CLAIM The ornamental design for an expansion valve of an air conditioning system, as shown and described. 